In 1928 and 1930, he worked in Turfan with other members of Hedin’s expedition, while also studying Gaochang and the cave monasteries, Bezeklik in particular[1]. In 1930, he excavated in Yarqoto, before returning to Gaochang and then moving on to the burial grounds of Astana. A new cycle of work was undertaken in 1933 and then resumed in 1943.